I have not gone Wot yet this year. But easing into the throttle(30-40%) the car stumbles and noses over for a split second then picks back up. Happens coming into boost (0-10psi). I wanna pin point it to a fuel issue sense that's the only difference sense last year. The fp regulator that I currently have is a Bosch 0 280 160 233 which I believe is not adjustable. My a/f when it spools is 14-15:1 and fp is 37ish with line connected